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Urethane Casting Process

The urethane casting process, also known as polyurethane casting, is a highly versatile and efficient method for producing high-quality prototypes and low-volume production parts. This technique utilizes specialized Urethane Casting Resin to create parts that closely mimic the properties of injection-molded thermoplastics. The success of the process heavily relies on the selection of high-performance Urethane Casting Materials, which determine the final part's mechanical strength, thermal stability, and surface finish. For projects requiring optical clarity, a Clear Urethane Casting Resin is the ideal choice, offering excellent light transmission for lenses, windows, and display models. To ensure precision and repeatability, the entire procedure is often supported by an advanced Urethane Casting Machine, which automates the mixing and dispensing of materials, minimizing voids and ensuring consistent results batch after batch.


Our flagship product, the PrecisionCast Urethane System, is engineered for exceptional performance. It offers a wide range of material options to suit various application requirements, from flexible elastomers to rigid composites. The system's parameters are detailed below to provide a comprehensive understanding of its capabilities.

Key Features of PrecisionCast Urethane System:

  • Wide range of Shore A and D hardness options
  • Excellent abrasion and chemical resistance
  • High tear strength and dimensional stability
  • Low viscosity for easy processing and bubble-free casts
  • Fast cure times at room temperature or with mild heat

Technical Specifications:

Property Value Range Test Method
Mixed Viscosity 200 - 800 cPs ASTM D2393
Pot Life 5 - 45 minutes ASTM D2471
Demold Time 1 - 16 hours In-house Standard
Shore Hardness 50A - 85D ASTM D2240
Tensile Strength 500 - 8000 psi ASTM D412
Elongation at Break 100% - 500% ASTM D412
Heat Deflection Temperature (HDT) 40°C - 120°C ASTM D648

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